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Department of Sociology, University of Maryland 20742-1315, USA.
OBJECTIVES: This study examined the differences in environmental tobacco smoke exposure between smokers and non-smokers. METHODS: A probability sample of 1579 California adults completed a 1-day time diary of a full day's activities in which they reported whether any smoker was present during each activity. RESULTS: Some 61% of respondents reported at least some environmental tobacco smoke exposure in these diary accounts (for an average of up to 5 hours per day), and potential exposure rose monotonically with number of cigarettes actively smoked. Heaviest smokers reported about four times as much such exposure as nonsmokers. CONCLUSIONS: Because smokers lead life-styles that expose them to far higher levels of environmental tobacco smoke exposure, that factor needs to be controlled in studies estimating the effects of active smoking.
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G. E Matt, D. R Wahlgren, M. F Hovell, J. M Zakarian, J. T Bernert, S. B Meltzer, J. L Pirkle, and S. Caudill Measuring environmental tobacco smoke exposure in infants and young children through urine cotinine and memory-based parental reports: empirical findings and discussion Tob. Control, September 1, 1999; 8(3): 282 - 289. [Abstract] [Full Text] |
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